The establishment of a green belt is an attempt to control air pollution by \ \ \ \ \ \ . - UP NHM CHO 7 Sept 2022(shift-1st)

UP NHM CHO 7 Sept 2022(shift-1st)

Community Health Nursing

Medium

Appeared in: UP NHM CHO 7 Sept 2022(shift-1st)

Explanation

The establishment of a 'green belt' with trees and vegetation between industrial and residential areas is a method of air pollution control.
This method works by dilution, as vegetation can absorb some pollutants and trap particulate matter, thereby reducing the concentration of pollutants in the air.
The World Health Organization (WHO) recognizes dilution as a valid procedure for air pollution control, as long as it is within the self-cleaning capacity of the environment.

Option A: Monitoring is the process of measuring and assessing air quality. It is an essential part of managing air pollution but is not a direct control method itself. It identifies the problem rather than solving it.
Option B: Replacement involves substituting a polluting process or material with a cleaner one (e.g., using natural gas instead of coal). Planting a green belt does not replace the source of pollution.
Option D: Containment refers to preventing the escape of pollutants at the source, for example, by using filters, scrubbers, or 'arresters' in industrial chimneys. A green belt does not contain pollution at its source; it mitigates it after it has been released.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Methods of Air Pollution Control as background academic context rather than a clinical decision trigger.
Air pollution is a major public health concern, linked to respiratory diseases (like asthma, chronic bronchitis), cardiovascular problems, and even cancer. Nurses frequently care for patients whose conditions are caused or worsened by poor air quality.
Green belts are a community-level public health intervention. By advocating for and understanding the role of urban green spaces, healthcare professionals can contribute to creating healthier environments and reducing the burden of pollution-related illnesses.
What if? If a city had no space for a green belt around an industrial zone, alternative control measures would become more critical. This would include stricter enforcement of 'containment' (e.g., advanced filters on all emissions) and 'replacement' (e.g., incentivizing industries to switch to cleaner technologies).

How to Approach the Question

First, identify the key terms in the question: 'green belt' and 'control air pollution'.
Recall or deduce the function of a green belt. It's a barrier of vegetation, usually trees.
Consider how trees and plants interact with air. They can absorb gases and their leaves can trap dust and particles.
Evaluate the given options in the context of pollution control strategies.
Containment means trapping at the source. A green belt is not at the source.
Replacement means using a different, cleaner source. A green belt doesn't change the pollution source.

Concept Tested & Keywords

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E6 Parks TextBook of Preventive & Social Medicine part 2 — Subpart B (pp 233-449 of 464) p. 55-57